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A C++ wrapper for SCIP

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Deart SCIPpp team, I love SCIPpp as I always have found using SCIP the manual way in C++ rather cumbersome. Does SCIPpp already incorporate a wrapper for GCG? Best, glanch

enhancement

Solving statistics currently need to be accessed via their C interface. This includes access to the obtained gap / dual bound. See https://www.scipopt.org/doc-6.0.0/html/group__PublicSolvingStatsMethods.php for an overview.

make Var.var private and add a getter that is deprecated This way, the user gets a warning for every usage of a SCIP feature that might be missing in SCIP++

Add new c'tors to LinExpr to speed-up the creation of expressions with multiple variables. Fixes #32 This is an alternative implementation of #34

Summing up variables via linear expression's operator `+=` takes a lot of runtime. It would be nice to have a method that quickly creates a sum from a range of...

enhancement
good first issue

Support defining and using custom message handlers without the need to use deprecated stuff. Scip offers object-oriented base classes to implement things like message handlers: See `scip::ObjMessagehdlr` in `objscip/objmessagehdlr.h`.

enhancement